astrobleme

as·tro·bleme  (str-blm, -blm)

n.

A scar on the earth's surface left from the impact of a meteorite.

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[astro- + Greek blma, missile, wound (from ballein, to throw; see g^wel- in Indo-European roots).]

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astrobleme [ˈæstrəˌbliːm]

n

(Earth Sciences / Geological Science) a mark on the earth's surface, usually circular, formed by a large ancient meteorite impact

[from astro- + Greek blēma shot, wound]